package com.forum.ajax.homepage;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Timestamp;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.json.JSONObject;

import com.forum.domain.Category;
import com.forum.domain.CategoryDAO;
import com.forum.domain.Groups;
import com.forum.domain.GroupsDAO;
import com.forum.domain.Topic;
import com.forum.domain.TopicDAO;
import com.forum.domain.Uct;
import com.forum.domain.UctDAO;
import com.forum.domain.User;
import com.forum.domain.UserDAO;

public class NewTopic extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public NewTopic() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the GET method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();

		UserDAO userDAO = new UserDAO();
		GroupsDAO groupsDAO = new GroupsDAO();

		String name = request.getParameter("name");
		int userid = Integer.parseInt(request.getParameter("id"));
		User user = userDAO.findById(userid);

		String intro = request.getParameter("intro");
		String openess = request.getParameter("openess");
		String category_str = request.getParameter("category");

		int groupid = Integer.parseInt(request.getParameter("groupid"));
		Groups groups = groupsDAO.findById(groupid);

		CategoryDAO categoryDAO = new CategoryDAO();
		Category category = new Category();

		try {
			List<Category> categories = categoryDAO.findByProperty("content",
					category_str);
			if (categories.size() == 0) {
				category = new Category(category_str);
				categoryDAO.save(category);
			} else {
				category = categories.get(0);
			}

			Topic newTopic = new Topic();

			if (openess.equals("true")) {
				newTopic = new Topic(category, groups, user, name, "",
						new Timestamp(System.currentTimeMillis()), intro, true);
			} else {
				newTopic = new Topic(category, groups, user, name, "",
						new Timestamp(System.currentTimeMillis()), intro, false);

			}
			
			newTopic.setReplycount(0);
			
			//change user concern topic count
			user.setTopiccount(user.getTopiccount()+1);

			TopicDAO topicDAO = new TopicDAO();
			topicDAO.save(newTopic);
			topicDAO.getSession().beginTransaction().commit();
			

			//add uct
			UctDAO uctDAO = new UctDAO();
			Uct uct = new Uct(newTopic, user);
			uctDAO.save(uct);
			uctDAO.getSession().beginTransaction().commit();
			JSONObject topicjJsonObject = new JSONObject();
			topicjJsonObject.accumulate("id", newTopic.getId());
			topicjJsonObject.accumulate("user", newTopic.getUser().getNickname());
			topicjJsonObject.accumulate("replycount", newTopic.getReplycount());

			out.print(topicjJsonObject);
		} catch (Exception e) {
			// TODO: handle exception
			e.printStackTrace();
			out.print("error");
		}

	}

	/**
	 * Initialization of the servlet. <br>
	 * 
	 * @throws ServletException
	 *             if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
